Home / 31,835.40-47,721.60-14,075.70

Finding the Fourth Proportional to 31,835.40, 47,721.60 and 14,075.70

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Solution

The fourth proportional to 31,835.40, 47,721.60 and 14,075.70 is: 21,099.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,835.40 : 47,721.60 = 14,075.70 : x
  2. Step 2: Convert to fraction form
    31,835.40/47,721.60 = 14,075.70/x
  3. Step 3: Cross multiply
    31,835.40x = 47,721.60 × 14,075.70
  4. Step 4: Simplify right side
    31,835.40x = 671,714,925.12
  5. Step 5: Solve for x
    x = 671,714,925.12/31,835.40
  6. Step 6: Final answer
    x = 21,099.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.